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@ARTICLE{Wehling:15682,
      author       = {Wehling, T. O. and Sasioglu, E. and Friedrich, C. and
                      Lichtenstein, A. I. and Katsnelson, M. I. and Blügel, S.},
      title        = {{S}trength of {E}ffective {C}oulomb {I}nteractions in
                      {G}raphene and {G}raphite},
      journal      = {Physical review letters},
      volume       = {106},
      issn         = {0031-9007},
      address      = {College Park, Md.},
      publisher    = {APS},
      reportid     = {PreJuSER-15682},
      pages        = {236805},
      year         = {2011},
      note         = {Financial support by the Deutsche Forschungsgemeinschaft
                      through FOR-912, FOR-1346, SFB 668, SPP 1145, SPP 1459, and
                      FOM (The Netherlands) is acknowledged. T. O. W. is grateful
                      to FZ Julich for hospitality during the visit, when parts of
                      this work were conceived. One of us, S. B., thanks Achim
                      Rosch for fruitful discussions.},
      abstract     = {To obtain an effective many-body model of graphene and
                      related materials from first principles we calculate the
                      partially screened frequency dependent Coulomb interaction.
                      In graphene, the effective on-site (Hubbard) interaction is
                      U-00 = 9.3 eV in close vicinity to the critical value
                      separating conducting graphene from an insulating phase
                      emphasizing the importance of nonlocal Coulomb terms. The
                      nearest-neighbor Coulomb interaction strength is computed to
                      U-01 = 5.5 eV. In the long-wavelength limit, we find the
                      effective background dielectric constant of graphite to be
                      is an element of = 2.5 in very good agreement with
                      experiment.},
      keywords     = {J (WoSType)},
      cin          = {PGI-1 / IAS-1 / JARA-FIT / JARA-HPC},
      ddc          = {550},
      cid          = {I:(DE-Juel1)PGI-1-20110106 / I:(DE-Juel1)IAS-1-20090406 /
                      $I:(DE-82)080009_20140620$ / I:(DE-Juel1)VDB1346},
      pnm          = {Grundlagen für zukünftige Informationstechnologien},
      pid          = {G:(DE-Juel1)FUEK412},
      shelfmark    = {Physics, Multidisciplinary},
      typ          = {PUB:(DE-HGF)16},
      UT           = {WOS:000291399500010},
      doi          = {10.1103/PhysRevLett.106.236805},
      url          = {https://juser.fz-juelich.de/record/15682},
}